python simple chat room to achieve LAN chat function

This article is an example of python to share the realization of the LAN chat function of the specific code for your reference, the specific content is as follows

Function:

We can send messages to ip, which turns on the function of receiving messages in the LAN. We can write two pieces of code with different ports to realize chatting with ourselves on one computer.

Key points:

To do this, the program's port must be fixed

from socket import *


def udp_send(udp_socket):
  #  Send a message   Receive user input 
  send_mes = input(" Please enter send content :")
  #  Receiving user input ip
  ip = input(" Please enter the ip address :")
  #  Receives the user input port number 
  port = int(input(" Please enter the port number "))
  #  Send a message   Encoding of content 
  udp_socket.sendto(send_mes.encode("gbk"), (ip, port))


def udp_recvfrom(udp_socket):
  #  Receives the message   most 4096 bytes  
  get_mes, get_ip = udp_socket.recvfrom(4096)
  print(" Received from %s The news of the :%s" % (str(get_ip), get_mes.decode("gbk")))


def main():
  #  Create the socket 
  udp_socket = socket(AF_INET, SOCK_DGRAM)
  #  Set fixed port 
  udp_socket.bind(("", 8889))

  while True:
    print("*" * 50)
    print("---------- Invincible chatterbox ----------")
    print("1. Send a message ")
    print("2. Receives the message ")
    print("0. Log out ")
    print("*" * 50)

    user = input(" Please enter the action to perform :")

    if user == "1":

      udp_send(udp_socket)

    elif user == "2":

      udp_recvfrom(udp_socket)

    elif user == "0":
      break

    else:

      print(" Input is wrong ")
  #  Close the socket 
  udp_socket.close()


if __name__ == "__main__":
  main()